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runthefoxes
@runthefoxes
August 2022
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Чему равен sin² 585 градусов?
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Tetsuya
Sin^2(585)=sin585*sin585585=540+45=180·3+45=3пи+45°sin 585°=sin (3пи+45)=sin (пи+45°) = - sin 45°=- √2/2Т.е. sin^2(585)=(- √2/2 )* (- √2/2)=0,5
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Tetsuya
sin^2(585)=sin585*sin585
585=540+45=180·3+45=3пи+45°
sin 585°=sin (3пи+45)=sin (пи+45°) = - sin 45°=- √2/2
Т.е. sin^2(585)=(- √2/2 )* (- √2/2)=0,5
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Answers & Comments
585=540+45=180·3+45=3пи+45°
sin 585°=sin (3пи+45)=sin (пи+45°) = - sin 45°=- √2/2
Т.е. sin^2(585)=(- √2/2 )* (- √2/2)=0,5